Foundation - UBogun/Xojo-iosLib GitHub Wiki

Foundation is Appleโ€™s shared framework for core classes: NSObject, Arrays, Dictionaries โ€“ the most frequently used classes are part of Foundation.
You can tell a Foundation class by its name beginning with "NS" โ€“ an abbreviation for NextStep, which is where the basics for these classes stem from.

Classes

  • AppleObject: An implementation of NSObject, the base class of iOS Objects.
  • AppleArray: Implementation of NSArray, the immutable iOS class for arrays.
  • AppleMutableArray: Implementation of NSMutableArray.
  • AppleBundle: Implementation of NSBundle.
  • AppleData
  • AppleMutableData
  • AppleDictionary
  • AppleMutableDictionary
  • AppleError
  • AppleInvocation
  • AppleMethodSignature
  • AppleMethodDescription
  • AppleNumber
  • AppleNotification: The class defining notifications sent by AppleNotificationCenter.
  • AppleNotificationCenter: Implementation of NSNotificationCenter, a class for catching, forwarding and creating notifications.
  • AppleOperationQueue
  • AppleProtocol
  • AppleResponder: Implementation of UIResponder, base class for controls that react on user input.
  • AppleStringDrawingContext: Implementation of NSStringDrawingContext, a class to test AttributedString dimensions before drawing.
  • AppleStringDrawingOptions
  • AppleURL
  • AppleURLRequest
  • AppleURLSession (Optional, can be removed from the project without problems for the rest of the lib)
  • AppleValue

Public Properties

IntegerSize As UInteger (read-only): Returns the size of an Integer in Bytes โ€“ 4 on a 32bit and 8 on a 64bit system.

Public Methods

NSClassFromString (aClass As CFStringRef) As Ptr: Returns the ptr to a class.

NSProtocolFromString (aProtocol As CFStringRef) As Ptr: Returns a Protocol ptr for a protocol name.

NSSelectorFromString (aSelector As CFStringRef) As Ptr: Returns a method ptr for a selector string.

NSStringFromSelector (ASelector As Ptr) As CFStringRef: Does the opposite.

Structures

NSPoint: A structure for handling point values in iOS API calls.

NSRange: A structure for range limits in iOS API calls.

NSRect: A structure for handling Rect values in iOS API calls.

NSSize: A structure for handling Size values in iOS API calls.

Please note that many of these structures exist in a 32bit definition too. You will generally use the 64bit declaration (the one without the extension 32Bit) for iOSLib calls. Internally they are converted if needed. See the Conversion Modules section.